[ Proceedings]
Subtitle: second International Symposium on Problems Related to the Redefinition of North American Vertical Geodetic Networks : Ottawa, Canada, May 26-30, 1980 : [including meetings of the International Association of Geodesy Special Study Groups 1.42 on Electromagnetic Wave Propagation and Refraction in the Atmosphere and 1.53 on New Parameters for Error Analysis of Levelling Networks] = [Comptes rendus] : deuxième Symposium international sur les problèmes reliés à la redéfinition des réseaux géodésiques verticaux nord-américains : Ottawa, Canada, 26-30 mai 1980
By: sponsors, Canadian Institute of Surveying, Surveys and Mapping Branch, Department of Energy, Mines & Resources ; co-sponsors, International Association of Geodesy ... [et al.]. --
Contributors: Canada. Surveys and Mapping Branch.; Canadian Institute of Surveying; International Association of Geodesy.
Publisher: Canadian Institute of Surveying
Published: 1980
Place of publication: Ottawa
Number of pages: 978
Subjects: Geodesy -- North America -- Congresses.; Nets (Geodesy) -- Congresses.
Other titles: Les problèmes reliés à la redéfinition des réseaux géodésiques verticaux nord-américains.; NAD symposium 1980.; Problems related to the redefinition of North American vertical geodetic networks.
Notes: Cover title: NAD symposium 1980.

Papers in English or French.

Abstracts in English and French.